A water main break at 5:15 this morning on St. Elmo Street in Upper Nazareth Township has shut off water to a two-block area, a water company official reports.

The break in the 6-inch main, between Newport Avenue and Rose Inn Avenue, did not close any streets, Pennsylvania American Water's Nazareth-Blue Mountain District Supervisor Guy Findon said just after 8 o'clock.

The water had been shut off to the main and repairs were under way, Findon said. Work was expected to be complete by noon or 1 this afternoon, he said.

Crews were salting, cindering and plowing the ice created by the break, he said.

The crews were prepared for the below-zero chill factors, he said.

"We're pretty much used to it," he said of working in extreme weather.

The temperature hasn't been cold long enough for it likely to play a role in the main break, he said.